TP-028, Nat Adderley's Work Song is now available

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Topics - SonusBonum

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Tape Tech / STUDER A810 SPOOLING MOTOR CONTROL PCB 1.810.760-82
« on: May 25, 2016, 02:36:31 PM »
Hi everyone,

I just got my beautiful A810 and it plays like an angel. However after a while and closer to the end of the tape the left tension roller starts wobbling. It is like the tape tension fluctuates in a regular fashion.
I took out the SPOOLING MOTOR CONTROL PCB and checked it. What I found was that C15, C16, C18 and C18 were 220uF/35V while the book says they must be 100uF/25V. Since those caps are in a opamp circuit I figure that these values should be correct. I mean, they are not just for voltage regulation.
Can someone tell me whether the book is wrong or the guy that changed the caps...?
Thank you much...!

Ronald

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